Begging again..
Looking for a T2742e bulb (plus maybe a spare) for a Ukw.E.e whose bulb has failed. It was always somewhat blackened inside and now no longer lights at all. These are not just hi-voltage indicator bulbs, but also have additional purpose?
A 1945 Ukw.E.e I have had a very similar 9512M bulb that seems like an acceptable substitute, but these may be less common than the standard bulb.
I guess looking for these on eBay is a good idea. Any usable substitute option.
Thanks to all W.A. followers.